Hey Nutribullet owners! If your original cups are cracked, stained, or just not sealing properly anymore, this 2-pack of replacement cups is exactly what you need. These 18oz cups are designed specifically for Nutri Bullet 600W and Nutri Bullet Pro 900 blenders - they fit perfectly and function just like the originals. Each cup measures about 3.9 inches in diameter and 4.5 inches tall, giving you plenty of room for smoothies, protein shakes, dressings, and whatever else you love to blend. The flat lids seal tight with no cracking or leaking issues that you sometimes get with off-brand replacements. They're dishwasher safe for easy cleaning, and you can extract and blend right in the same cup just like with the originals. Important note: These do NOT work with Nutri Bullet Lean (1200W), Nutri Bullet RX (1700W), Magic Bullet, or Ninja blenders - make sure you have the compatible models before ordering. The set includes 2 cups and 2 flat lids, so you'll have backups ready when you need them. Built to last through daily use without clouding or staining easily. If you have any issues or questions, the seller offers great customer support with refund or replacement options. Keep your Nutribullet running smoothly with these affordable, high-quality replacement cups that work just as well as the expensive originals!